Hideing and showing a DataGridViewButtonCell

Question

I need help on how to make individual dataGridViewButtonCell's invisable and visible programically? ANybody?

Answer 1

 

Hi Aarron345,

Based on my experience, there are two options to make the DataGridViewButtonCell invisible.

One way is that we can custom paint the cell. Since the button inside a DataGridViewButtonCell is not an actual button, it is painted like a button, we can paint particular cell to make it looks like a common cell by handling the CellPainting event. Please check the following link for details.

• http://msdn.microsoft.com/en-us/library/system.windows.forms.datagridview.cellpainting.aspx

The other way is very tricky. We can change the DataGridViewButtonCell to DataGridViewTextBoxCell to hide the Button. Here is a sample for your information.

Code Snippet

    public partial class Form17 : Form

    {

        public Form17()

        {

            InitializeComponent();

        }

 

        private void Form17_Load(object sender, EventArgs e)

        {

            DataTable dt = new DataTable();

            dt.Columns.Add("id");

            dt.Columns.Add("item");

            for (int i = 0; i < 50; i++)

            {

                dt.Rows.Add(i, "item" + i);

            }

            dt.AcceptChanges();

 

            DataGridViewButtonColumn btnColumn = new DataGridViewButtonColumn();

            btnColumn.DataPropertyName = "id";

            btnColumn.Width = 100;

            btnColumn.ReadOnly = true;

            this.dataGridView1.Columns.Add(btnColumn);

            this.dataGridView1.DataSource = dt;

 

            foreach (DataGridViewRow dr in this.dataGridView1.Rows)

            {

                if (dr.Cells[0].Value != null)

                {

                    int i;

                    if ((int.TryParse(dr.Cells[0].Value.ToString(),out i)))

                    {

                        if (i % 2 == 0)

                        {

                            DataGridViewTextBoxCell txtcell = new DataGridViewTextBoxCell();

                            dr.Cells[0] = txtcell;

                        }

                    }

                }

            }

        }

    }

 

Best regards.
Rong-Chun Zhang

Windows Forms General FAQs
Windows Forms Data Controls and Databinding FAQs

Answer 2

Second option works cool!